Home / 38,435.18-53,020.37-31,273.09

Finding the Fourth Proportional to 38,435.18, 53,020.37 and 31,273.09

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Solution

The fourth proportional to 38,435.18, 53,020.37 and 31,273.09 is: 43,140.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,435.18 : 53,020.37 = 31,273.09 : x
  2. Step 2: Convert to fraction form
    38,435.18/53,020.37 = 31,273.09/x
  3. Step 3: Cross multiply
    38,435.18x = 53,020.37 × 31,273.09
  4. Step 4: Simplify right side
    38,435.18x = 1,658,110,748.48
  5. Step 5: Solve for x
    x = 1,658,110,748.48/38,435.18
  6. Step 6: Final answer
    x = 43,140.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.